/Engine/Source/Developer/HierarchicalLODUtilities/Public/IHierarchicalLODUtilities.h
Creates a new cluster in InWorld with InActors as sub actors
[ALODActor](API\Runtime\Engine\Engine\ALODActor) * CreateNewClusterFromActors ( [UWorld](API\Runtime\Engine\Engine\UWorld) * InWorld, [AWorldSettings](API\Runtime\Engine\GameFramework\AWorldSettings) * WorldSettings, const [TArray](API\Runtime\Core\Containers\TArray)< [AActor](API\Runtime\Engine\GameFramework\AActor) * > & InActors, const int32 InLODLevel )